elephantiasis
/ˌelɪfənˈtaɪəsɪs/noun
mass noun
- Medicine a condition in which a limb or other part of the body becomes grossly enlarged due to obstruction of the lymphatic vessels, typically by the nematode parasites which cause filariasis【医】象皮病（一种由丝虫引起的寄生虫病）。
词源
mid 16th cent.: via Latin from Greek, from elephas, elephant- 'elephant' + -IASIS.